Hopewell Junction is a hamlet and census-designated place (CDP) in Dutchess County, New York, United States.

[3][4] The closest passenger facility is Beacon station on Metro-North's Hudson Line.

Today, Hopewell Junction sits astride the bike/walk Empire State Trail where it is the juncture between the Dutchess Rail Trail running west to the Walkway Over the Hudson at Poughkeepsie, New York and the more recently constructed Maybrook Trailway winding through the hills to Brewster, New York to almost meet the Putnam County Trailway and its continuations to New York City.

According to the United States Census Bureau, the CDP has a total area of 0.50 square miles (1.3 km2), mostly land,[6] a significant reduction from the 2000 Census delineation, when the CDP had an area of 2.8 square miles (7.3 km2).

Hopewell Junction is served by Dutchess County Public Transit's route F.[10][11]